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2 Bandwidth facts

The Dial-up FAQ has a great explanation for this -- http://www.dslreports.com/faq/3758

http://www.t1shopper.com/tools/calculate/ has some good details as well.

Feedback received on this FAQ entry:
  • Here is another free file size calculator: http://www.mindgems.com/info/file-size/

    2011-11-27 15:04:51



by removed See Profile
last modified: 2004-02-20 17:37:25

From http://yocum.org/faqs/bandwidth/:

OC-255 13.21 Gbps
OC-192 10 Gbps
OC-96 4.976 Gbps
OC-48, STS-48 2.488 Gbps
OC-36 1.866 Gbps
OC-24 1.244 Gbps
OC-18 933.12 Mbps
OC-12, STS-12 622.08 Mbps
OC-9 466.56 Mbps
OC-3, STS-3 155.52 Mbps
CDDI, FDDI, Fast Ethernet, Category 5 cable 100 Mbps
OC-1, STS-1 51.84 Mbps
T-3, DS-3 North America 44.736 Mbps
E-3 Europe 34.368 Mbps
Category 4 cable 20 Mbps
Token Ring LANs 16 Mbps
Thin Ethernet, category 3 cable, cable modem 10Mbps
E-2 Europe 8.448 Mbps
T-2, DS-2 North America 6.312 Mbps
Standard ADSL downstream 6.144 Mbps
DS-1c 3.152 Mbps
E-1, DS-1 Europe 2.048 Mbps
ADSL, T-1, DS-1 North America 1.544 Mbps
ISDN 128 Kbps
DS-0, pulse code modulation 64 Kbps
U.S. Robotics x2 modems, 56 Kbps 56flex
56flex, x2 modem communications rate 33.6 Kbps
V.34, Rockwell V.Fast Class modems 28.8 Kbps
Level 1 cable, minimum cable data speed 20 Kbps
V.32bis modem, V.17 fax 14.4 Kbps
modem speed circa early 1990s 9600 bps
modem speed circa 1980s 2400 bps


Feedback received on this FAQ entry:
  • "modem speed circa 1980s" should be "late 80's". Early 80's I had 300 bps modems.

    2014-07-18 13:42:33

  • OC-255 should be OC-256 should add some newer ones: OC-768/STM-256 39,813 Mbit/s (38.8798828 Gbps) 4,976 MB/s OC-1536/STM-512 79,626 Mbit/s (77.7597656 Gbps) 9,953 MB/s OC-3072/STM-1024 159,252 Mbit/s (155.519531 Gbps) 19,907 MB/s

    2009-12-31 00:43:20 (luma See Profile)



by removed See Profile
last modified: 2004-01-26 23:37:41

From http://www.dslreports.com/faq/356:
The top speed for ADSL lines is around 8 mbit/sec for the download, and 1 mbit/sec for the upload.

by removed See Profile

From http://www.dslreports.com/faq/356:
For SDSL lines the top speed is 2.3 mbit/sec on both the upload and download.

by removed See Profile


Martindale's File Download Time Calculator gives this for lots of bandwidths simultaneously.

by climbers See Profile edited by removed See Profile
last modified: 2004-01-29 17:17:24

TestMySpeed.com has tests from all over the United States, as well as the rest of the world, collected in one handy place.

The DSL Reports speedtest page has a good collection as well.

by climbers See Profile edited by removed See Profile
last modified: 2004-01-29 17:56:55

When you are networked to the Internet, or to your own network, the bandwidth given is the theoretical maximum. The real world, of course, doesn't work like that. There are many things which affect your actual bandwidth. This is a simple introduction to the basics: Bandwidth

Feedback received on this FAQ entry:
  • Here is another free file size converter that can handle huge numbers: http://www.mindgems.com/info/file-size/

    2011-12-20 18:36:16



by climbers See Profile edited by removed See Profile
last modified: 2005-06-19 21:35:09